Search Results for author: Andrés Bruhn

Found 13 papers, 8 papers with code

CCMR: High Resolution Optical Flow Estimation via Coarse-to-Fine Context-Guided Motion Reasoning

1 code implementation5 Nov 2023 Azin Jahedi, Maximilian Luz, Marc Rivinius, Andrés Bruhn

Attention-based motion aggregation concepts have recently shown their usefulness in optical flow estimation, in particular when it comes to handling occluded regions.

Optical Flow Estimation

Detection Defenses: An Empty Promise against Adversarial Patch Attacks on Optical Flow

1 code implementation26 Oct 2023 Erik Scheurer, Jenny Schmalfuss, Alexander Lis, Andrés Bruhn

In this paper, we thoroughly examine the currently available detect-and-remove defenses ILP and LGS for a wide selection of state-of-the-art optical flow methods, and illuminate their side effects on the quality and robustness of the final flow predictions.

Adversarial Robustness Motion Detection +2

Distracting Downpour: Adversarial Weather Attacks for Motion Estimation

1 code implementation ICCV 2023 Jenny Schmalfuss, Lukas Mehl, Andrés Bruhn

Current adversarial attacks on motion estimation, or optical flow, optimize small per-pixel perturbations, which are unlikely to appear in the real world.

Motion Estimation Optical Flow Estimation

Spring: A High-Resolution High-Detail Dataset and Benchmark for Scene Flow, Optical Flow and Stereo

2 code implementations CVPR 2023 Lukas Mehl, Jenny Schmalfuss, Azin Jahedi, Yaroslava Nalivayko, Andrés Bruhn

While recent methods for motion and stereo estimation recover an unprecedented amount of details, such highly detailed structures are neither adequately reflected in the data of existing benchmarks nor their evaluation methodology.

Optical Flow Estimation Scene Flow Estimation +2

Attacking Motion Estimation with Adversarial Snow

no code implementations20 Oct 2022 Jenny Schmalfuss, Lukas Mehl, Andrés Bruhn

Current adversarial attacks for motion estimation (optical flow) optimize small per-pixel perturbations, which are unlikely to appear in the real world.

Motion Estimation Optical Flow Estimation

Multi-Scale RAFT: Combining Hierarchical Concepts for Learning-based Optical FLow Estimation

1 code implementation25 Jul 2022 Azin Jahedi, Lukas Mehl, Marc Rivinius, Andrés Bruhn

Many classical and learning-based optical flow methods rely on hierarchical concepts to improve both accuracy and robustness.

Optical Flow Estimation

M-FUSE: Multi-frame Fusion for Scene Flow Estimation

1 code implementation12 Jul 2022 Lukas Mehl, Azin Jahedi, Jenny Schmalfuss, Andrés Bruhn

Secondly, and even more importantly, exploiting the specific modeling concepts of RAFT-3D, we propose a U-Net architecture that performs a fusion of forward and backward flow estimates and hence allows to integrate temporal information on demand.

Scene Flow Estimation

Blind Image Inpainting with Sparse Directional Filter Dictionaries for Lightweight CNNs

no code implementations13 May 2022 Jenny Schmalfuss, Erik Scheurer, Heng Zhao, Nikolaos Karantzas, Andrés Bruhn, Demetrio Labate

Blind inpainting algorithms based on deep learning architectures have shown a remarkable performance in recent years, typically outperforming model-based methods both in terms of image quality and run time.

Image Inpainting

A Perturbation-Constrained Adversarial Attack for Evaluating the Robustness of Optical Flow

1 code implementation24 Mar 2022 Jenny Schmalfuss, Philipp Scholze, Andrés Bruhn

Recent optical flow methods are almost exclusively judged in terms of accuracy, while their robustness is often neglected.

Adversarial Attack Adversarial Robustness +1

Subjective Annotation for a Frame Interpolation Benchmark using Artefact Amplification

no code implementations10 Jan 2020 Hui Men, Vlad Hosu, Hanhe Lin, Andrés Bruhn, Dietmar Saupe

This re-ranking not only shows the necessity of visual quality assessment as another evaluation metric for optical flow and frame interpolation benchmarks, the results also provide the ground truth for designing novel image quality assessment (IQA) methods dedicated to perceptual quality of interpolated images.

Image Quality Assessment Optical Flow Estimation +1

ProFlow: Learning to Predict Optical Flow

no code implementations3 Jun 2018 Daniel Maurer, Andrés Bruhn

By relating forward and backward motion these learned models not only allow to infer valuable motion information based on the backward flow, they also help to improve the performance at occlusions, where a reliable prediction is particularly useful.

Optical Flow Estimation

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